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Author
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Topic: Fuel Delivery Problems???
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Elapid
GOROBGO
Member # 50
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posted
 
 
WTF????????
i got my car back from the shop after they took out the motor so they could put longer bolts in the headers (?????????) and charged me 2700 for the experience, the fuel pressure drops off at WOT intermittantly...
they can't seem to troubleshoot the damn thing.
the car has brand-new 255 lph pumps in-tank and external. 42lb/hr injectors and Autologic chip by Byron, stock fuel rails.
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98 Cobra
83 Notch rolling chassis - fs
Posts: 1797 | From: Grass Valley, CA USA | Registered: Jul 2000
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93PONY
Mr. Valve Events
Member # 60
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posted
I just pulled my intank pickup out along with my inline hi-pressure 255.
I was VERY surprised at the I.D. of the pickup lines & fittings on the in-line pump.
I pulled off the fittings on the 255 in-line & the ID was 13/64th's (.203 inch). The in-tank pickup was not much better.
I drilled everything out to 1/4 inch ID (.250). Although it doesn't seem like much, that's 20% larger diameter & area. Volume is increased by at least that much.
I also found similar restrictions in the fuel filters. (stock style & high-flow)
Not saying this is your problem, just saying that I really don't know how a lot of these guys pull so much power out of these tiny fittings.
I wonder if you're fuel pump is cutting out at WOT....
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000
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1990GT50
¯
Member # 2119
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posted
quote:
Originally posted by 93PONY:
I wonder if you're fuel pump is cutting out at WOT....
that will kill a motor real fast if you have any type of power adder.
Posts: 877 | From: Benicia | Registered: Nov 2002
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Elapid
GOROBGO
Member # 50
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posted
sure seems that way...
good thing it's a forged motor, but still...
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98 Cobra
83 Notch rolling chassis - fs
Posts: 1797 | From: Grass Valley, CA USA | Registered: Jul 2000
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1990GT50
¯
Member # 2119
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posted
Take it back to the shop and tell them to fix it ![[patriot]](graemlins/patriot.gif)
Posts: 877 | From: Benicia | Registered: Nov 2002
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Elapid
GOROBGO
Member # 50
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posted
oh, i did.
they have had it for over a week now...
somehow they can't seem to troubleshoot it.
[ October 19, 2003, 08:39 PM: Message edited by: Elapid ]
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98 Cobra
83 Notch rolling chassis - fs
Posts: 1797 | From: Grass Valley, CA USA | Registered: Jul 2000
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